Heater-car.



J. P. ELMER.

HEATER CAR.

APPLICATION FILED APR-12. 1910.

Patented 001.19, 1915.

' a SHEETS-SHEET 1.

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Mi'neases pmg JM COLUMBIA PLANDGRAPH CO.,WASIIINGTON. n. c.

Y Improvementin Heater-Cams, of which heatingeppttratus feeders, and has among STATES PATENT ohms-E1.

JAMES P, LMER, or sit. PAU MINNESOTA, ASS'IGNORT'O MOORE PATENT GAR COMPANY, A CORPORATION OF SOUTH DAKOTA. r

'HE TEEGAIE I Be it known that I, J P! ELM-ER; 5 citizen of the United States, Teething" at St. Paul; in tl'l COltIltY of Ramsey and State of Minnesota, have invented a new and useful the following is a specificationr" Q V invention relates to 'i'lieprovements in its objects the eqi' stl iz'etion of heat in all parts 026 the ladi n'g chamber and the re- 'r novztl bf foul and cel'd 'air fromthe bottom of the our.

The ap p mtiis tq aeeomp li'sh this; iseasily regii-l z ted; to meet d ifierent-d'eii -ees f cold and is ep'erat'ed from theoiitside oi the car so that the ca1 dooreneed not he epem admi tti ng fieezimg air to? thelad ing ehambei. The heater and connected ai r ell-lets are" simple in construction and'easil y built into insulated or rehfi 'efator eats either new or old. I have eho'sen toasllotv j my device" in connection With tiwe having double Walls and? 10m; fcvith a ir" passages he'- fiwv'eeii which facilitate the equalization; of temperature With lfi the o'er and SL'l-I-IGfliid thel'adi hgichamber Withan" en'velop of air moving through these pnssazgewaysa- I My el'evice overcomes the usual} objections ing soot and foul gases by the use of a blue flame oil burner;- and prov-ides a constant supply of fresh pure a -if" for the provision ehamh'er; It doesinot take up space iii-the eztr andiseasily' removed or'renewed. j i

the dfztwingstha t illiistrate' my" device insulated car showing [insulating end eiir A-A 6f Fig; 1 showing" air spaces the end md bett'om: of the car and the" p sition f thelieater and the air ducts; Figi an enlarged view of a per-titan of Fig; 2] show ing heater and air passages Figi-k is a section on the line 131-313 of Fig. 3 Fig: 5 an 1 elevation of the" box containing the" heater showing the lecetion of the doors; and Fig.

Similar numem'l's are used indicate identical parts in the different-views."

. In my deviceas illustrated, 2 air i Specificatioh of fietteits Patent. 7 Patented mant l-ion fi i'ecl' Ajirfi 12, 1910. semi N5. 555,122. 1

spz'tee' between side Wt'llS 3 and 4; e Xt'eIidih-g dowi the' side end ends ofthe' @21 1" between ne'i stfips 5' and o ening into tlieitir mztteri a l 9' Liesbetween the fiooi' 8 and the exterior of the ceragBenath one side ofthe L0 Piss inlet .pipes'17 s'upplying ffeslf air to the-interior of the box. Abeve the'openi ng o'i inlet ipe 17 is defiebtiiig plate-18.

I9 to a qcommondmm 20 to Whibhi theyefe 'Ab vetheburners 11 extend connectio'njfiuesiencei removing the finest Thesesleeves j an assume lotte'd positimi 22-" EXtmiing 23. Theseduets pass through fio'ofs 8f'etrid -7 and extefid upw'ard threu hair sbace2 giid open iii to the endingchember flee-rits top th'ro'li'gh' opei iings 24E. Stir-foundiiig-Ihtit air 26 andaet; Of these pieces" 26' rests u'pen the ventilating passageway extend to near Plate 27 also has holes 30 close abovefloorf llbwing th ir the'botto m'of the ladingchambef't-o flow into the ventilating passageway 25. Burners ll liave en' automatic oil feed; ed t-hat they carmotloeflooded and s 1 can be bu'r'n'ed singly' or together. Wztll 5 spaces-2 communicate with theladihgehamber through Sl'ots'f 32 immedietel'yebove the 'fleo 7 which extend ecross alterngtte sp'aoes *betwe'enthe Vertical nailing strips:5: I

- i In operationJthe' ear .is loaded andflthe doors closed, one or both of the blue flame burners are lighted according to the temperature to which the car is subjected. lhe heat of the burners causes the air within the hot air ducts 19 to rise into the drum 20 and through the hot airducts 23 into the top of the lading chamber. 'As this takes place fresh air is supplied to the burner through the inlet pipes 17. The passage of the heated air through the ducts 23 tends to warm the walls of these ducts and the surrounding air within the ventilating passageway 25. As this air rises and escapes through the ventilators 29 the cold air in the bottom of the 'lading chamber enters through apertures 30 and 31 and completes the circulation through the lading chamber. By means of this circulation, the warm fresh air is passed into the. chamber at the top while the cold air and any foul gases that may arise from the load are drawn off through the ventilating passage. the air within the wall spaces 2 becoming cool bythe radiation of heat through the outer walls of the car will tend to settle downward into the space under the floor 7 and enter the ventilating passages 25 through opening 31 where it is heated by the duct 23 and rises out through the roof ventilators as mentioned above. As the cold air in wall space 2 settles downward it is replaced by warm air from the top of the lading chamber drawn into the air space 2 through opening 33. Thus warm air is constantly circulating downward in the wall spaces and under the floor of the car. This completes the circulation through the heater, the lading chamber, the wall and load,

floor spaces to the ventilating passage and the open air, and it is clear that the warm air supplied by the heater to the lading chamber can flow to the ventilators by one of three routes, viz. downward through the and then through openings 30; through wall space 2 and back into the lading chamber through openings 32; or through the wall space 2 into the floor space .6 and thence to the ventilators through.

opening 31. The flow of air through any of these routes is equally efficient in repelling 'cold from without and conserving the heat energy imparted to the 8-11. by the burners,

and the air will follow the route offering the freest flow, and will follow all to some extent.

In the construction of heater box 10, the

interior walls 16, the partitions 36 and 3.7

'and the sheathing 38 are constructed of fireproof material or rendered fireproof in any A dram pipe 39 is also oil supply tank 112. In this way each burner 11 is completely isolated from the oil-supply tank and from theadj oining burner and any :spilling orleakage of oil at the tank .or at At the same timeconnections to the feed pipe 14 will drain away, without spreading to the entire heater with the accompanying danger from fire. The isolation of the oil supply tank and the fireproofing of the adjacent parts will greatly decrease the danger from fire in case the heater car is wrecked, while in service.

In accordance with the patent statutes I have described the principles of operation of my invention together with the apparatus which I now consider to represent the best embodiment thereof but I desire to have it understood that the construction shown is only illustrative and that the invention can be carriedout by other means and applied to uses other than those above set forth within the scope of the following claims.

Having described my invention, what I claim as new and desire to protect by Lettors Patent is: r r

1. A car body having double walls and a double floor formingconnnunicating air passages which also communicate with the upper and lower portions of the lading chamber, a closed heater chamber below the car body having an air inlet to admit fresh air, a ventilating flue extending from the bottom to the top of said car body having a 'wardly through said ventilating flue and into the upper portion of the lading chamber, whereby one or more of said heaters may be operated and warm air circulated into the upper portion of the lading chamber and cold vitiated air is conducted from the lower portion of the lading chamber through the passages in the floor of the car body and directlyinto theventilating flue and thence to the outer atmosphere, said hot air ducts being adapted by contact of the surfaces of their walls with the air in said ventilating flueto heatvand drive the cold vitiated air received from the car body to the outer atmosphere.

2. A car body having a passage in its floor communicating with the lower portion of its lading chamber, a ventilating flue comprising plates forming a conduit recessed into the wall of the car, part of said plates forming the innermost and side walls of said conduit and the remaining forming .a cover for} the conduit lying substantially in the floor of the car body, and the cover of said conduit being formed with openings near the'floor vof the car body for conducting 13o cold and vitiated air from the lower portion In testimony thereof, I have signed my of the lading chamber into said conduit, a heater near the lower end of the conduit and a hot air flue in connection With said heater passing upwardly through said conduit and opening into the upper portion of the lading chamber, for the purposes specified.

tWo subscribing Witnesses.

JAMES P. ELMER. Witnesses:

PAUL S. SMITH, JULE DONOVAN.

Copies of this patent may be obtained for five eents each, by addressing the ,Oominissioner of Patents,

washlngtomllc. 1 a

name to this specification, in the presence of 

